I've been composting coffee grounds for a long time.
It takes me about 3 weeks to accumulate this much:
I'm sure there will be research indicating it's not the best thing to add to our gardens. Yet, I have not experienced anything other than rewards using it.
I use a Bodum/French Press and enjoy not impacting the heaps of waste when it comes to the recent use of coffee toss away pods. In my dual batch rolling composter, I get great compost after 6 weeks in the summer. Having a sniff of the finished compost, there's no trace of the coffee aroma left. My plants seem not to mind at all!
What I can't understand is why I've only seen one program which uses coffee grounds from big coffee shop chains.
I happened upon Grounds To Gardens at Cloverdale Mall this past April. Stopping to see bags of compost mixed with coffee grounds available for sale. My first reaction: "It's about time!" Oddly enough, I can't seem to find it available since.
Can't see why? Know of any?